[FLASH-USERS] usm MHD driver and periodic boundary conditions

[dongwook at flash.uchicago.edu]

Hi Ken,

I am Dongwook who wrote the USM solver in FLASH.
The USM solver should handle periodic boundary conditions without
any problem. Basically boundary conditions are applied via Grid routines
except for periodic BC: periodic BC's are treated in guardcell filing
routines.
You can have a look at how it works in

Grid_bcApplyToRegion.F90 (please look at the header part for description)

If this doesn't help your situation, I would like to know more what kinds
of issues you're running into.

Best regards,
Dongwook

> Hi,
>
> I am running a 2D cartesian problem with the usm driver.  Based on a few
> initial attempts, it is not clear to me
> that periodic boundary conditions can be applied, at least in one
> dimension.
>
> Can anyone comment?
>
> thanks,
>
> Ken Dere
>
> --
> Kenneth P. Dere
> Research Professor of Solar Physics
> Dept. of Computational and Data Sciences
> MS 6A2
> George Mason University
> 4400 University Drive
> Fairfax VA 22030
> 703-993-4555
> 703-993-1992 FAX
> kdere at gmu.edu
>